Revenant

Flying
Revenant's power and toughness are each equal to the number of creature cards in your graveyard.

Dark Ritual

Unearth

Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Coffin Queen

You may choose not to untap Coffin Queen during your untap step.
{2}{B}, {T}: Put target creature card from a graveyard onto the battlefield under your control. When Coffin Queen becomes untapped or you lose control of Coffin Queen, exile that creature.

Foul Imp

Flying
When Foul Imp enters, you lose 2 life.

Yawgmoth's Edict

Whenever an opponent casts a white spell, that player loses 1 life and you gain 1 life.

Pit Trap

{2}, {T}, Sacrifice Pit Trap: Destroy target attacking creature without flying. It can't be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Discordant Dirge

At the beginning of your upkeep, you may put a verse counter on Discordant Dirge.
{B}, Sacrifice Discordant Dirge: Look at target opponent's hand and choose up to X cards from it, where X is the number of verse counters on Discordant Dirge. That player discards those cards.

Greed

Perish

Destroy all green creatures. They can't be regenerated.

Dark Banishing

Destroy target nonblack creature. It can't be regenerated.

Grave Pact

Whenever a creature you control dies, each other player sacrifices a creature of their choice.

Fallen Angel

Flying
Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Swamp

Dauthi Slayer

Shadow (This creature can block or be blocked by only creatures with shadow.)
Dauthi Slayer attacks each combat if able.

Nightmare

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Necrologia

Cast this spell only during your end step.
As an additional cost to cast this spell, pay X life.
Draw X cards.

Dauthi Horror

Shadow (This creature can block or be blocked by only creatures with shadow.)
Dauthi Horror can't be blocked by white creatures.

Gravedigger

When Gravedigger enters, you may return target creature card from your graveyard to your hand.

Eradicate

Exile target nonblack creature. Search its controller's graveyard, hand, and library for all cards with the same name as that creature and exile them. Then that player shuffles.

Do or Die

Separate all creatures target player controls into two piles. Destroy all creatures in the pile of that player's choice. They can't be regenerated.

Carnophage

At the beginning of your upkeep, tap Carnophage unless you pay 1 life.

Fodder Cannon

{4}, {T}, Sacrifice a creature: Fodder Cannon deals 4 damage to target creature.

Culling the Weak

As an additional cost to cast this spell, sacrifice a creature.
Add {B}{B}{B}{B}.

Corrupt

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.